Just got back from a quick ride around my neighborhood. My 2003 WR was surging while traveling at consistant speed (55-60mph). With the TPS disconnected, the surging was almost non existant. Before disconnecting, I was unable to ride at a steady pace without the bike cutting out. Power was excellent as long as I was steadily adding more throttle. I do wonder if having the TPS disconnected, the ECM may get incorrect info and not adjust the timeing correctly? Any thoughts? Long term effects? I also am wondering if I should adjust the TPS and possibly get the same results. TPS is fine. The problem is, you are right at the threshold where timing is bouncing (ignition mapping) and it shows up at cruise RPM's, light throttle. When you disconnect the TPS, it just ignores it as an input and the timing is more fixed. I suspect you might lose some power off road, where it being hooked up, goes unoticed. This is basicallt a normal malady, not a defect. Its easy enough to undue if you need to cruise down some long roads.